html{
  font-size: 20px;
}
@media(min-width:768px){
  html{
    font-size: 18px;
  }
}

.card-deck .card{
  min-width: 220px;
}

.border-bottom{
  border-bottom:1px solid #e5e5e5;
}
.box-shadow{
  box-shadow:0 .25em .75rem rgb(0,0,0,05);
}